Improvement in printing-presses



R. M. HOE.

Printing-Press.

N0,]62,652 PatentedApril27,l875.

HE GRAPHIC C0.PHOTO.- LITH.39&.4'I PARK PLACLNAC UNITED STATES PATENT OFFICE RIcHARD M. HOE, OF NEW YORK, N. Y.

IMPROVEMENT IN PRlNTiNG-PRESSES.

Specification forming part of Letters Patent No. 162,652, dated April 27, 1875; application filed November 13, 1873.

To all whom it may concern:

Be it known that I, RICHARD M. HOE, of the city, county, and State of New York, have im'ented certain Improvements in Printing- Presses, of which the following is a specification My invention relates to the roller-frames or carriages of reciprocatingbed printing-machines, and particularly giving them a positive motion, and by so doing to improve the operation of the machine.

Figure l is a vertical longitudinal section. Fig. 2 is a transverse section.

A A represent the frame of the press. I) b are the ways in which the roller-frames f f, conveying their anti-friction rollers A A, run. There are two or more of these ways with their frames and rollers in each press. D D, the bed of the press, resting on the rollers a a. A small hanger, h, is attached to one of the roller-framesf. On this hanger is a stud or bearing on which the pinion Eruns and gears into the two racks c and g, one secured to the under side of the bed I), and the other secured to the ribs or ways I). It will be evident that on reciprocating the bed D the rack G will drive the pinion e, and this, gearing into the fixed rack g, will cause the pinion E and the roller-framef, to which it is attached, to move at one-half the speed of the bed 1). Thus we could be sure that all the roller-frames of a press would move with the certain relative speed to the bed, by attaching to each the pinion and racks, but we join the roller-frames or carriages together by means of the bar or frame i, and they all move at the same relative speed with but one service of pinion and racks.

What I claim is- I The rack 0 on the bed, pinion e fixed to one roller-frame, and stationary rack g, in ,combination with the rods 1', by which two or more roller-frames are attached together, so as to move in unison, substantially as described.

BIOHD. M. HOE.

W'itnesses:

N. WALTER ANTHONY, OHAs. W. CARPENTER. 

